package dao;

import java.util.Date;
import java.util.List;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import pojo.User;

/**
 * A data access object (DAO) providing persistence and search support for User
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see pojo.User
 * @author MyEclipse Persistence Tools
 */

public class UserDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(UserDAO.class);
	// property constants
	public static final String USER_NAME = "userName";
	public static final String USER_NUM = "userNum";
	public static final String GENDER = "gender";
	public static final String DEPARTMENT = "department";
	public static final String MAJOR = "major";
	public static final String MASTER_TYPE = "masterType";
	public static final String YEAR_SYSTEM = "yearSystem";
	public static final String CLASS_ = "class_";
	public static final String PRE_ADRESS = "preAdress";
	public static final String POSTCODE = "postcode";
	public static final String QQ_NUM = "qqNum";
	public static final String _EMAIL = "EMail";
	public static final String PHONE_NUM = "phoneNum";

	protected void initDao() {
		// do nothing
	}

	public void save(User transientInstance) {
		log.debug("saving User instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(User persistentInstance) {
		log.debug("deleting User instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public User findById(Long id) {
		log.debug("getting User instance with id: " + id);
		try {
			User instance = (User) getHibernateTemplate().get("pojo.User", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(User instance) {
		log.debug("finding User instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding User instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from User as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByUserName(Object userName) {
		return findByProperty(USER_NAME, userName);
	}

	public List findByUserNum(Object userNum) {
		return findByProperty(USER_NUM, userNum);
	}

	public List findByGender(Object gender) {
		return findByProperty(GENDER, gender);
	}

	public List findByDepartment(Object department) {
		return findByProperty(DEPARTMENT, department);
	}

	public List findByMajor(Object major) {
		return findByProperty(MAJOR, major);
	}

	public List findByMasterType(Object masterType) {
		return findByProperty(MASTER_TYPE, masterType);
	}

	public List findByYearSystem(Object yearSystem) {
		return findByProperty(YEAR_SYSTEM, yearSystem);
	}

	public List findByClass_(Object class_) {
		return findByProperty(CLASS_, class_);
	}

	public List findByPreAdress(Object preAdress) {
		return findByProperty(PRE_ADRESS, preAdress);
	}

	public List findByPostcode(Object postcode) {
		return findByProperty(POSTCODE, postcode);
	}

	public List findByQqNum(Object qqNum) {
		return findByProperty(QQ_NUM, qqNum);
	}

	public List findByEMail(Object EMail) {
		return findByProperty(_EMAIL, EMail);
	}

	public List findByPhoneNum(Object phoneNum) {
		return findByProperty(PHONE_NUM, phoneNum);
	}

	public List findAll() {
		log.debug("finding all User instances");
		try {
			String queryString = "from User";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public User merge(User detachedInstance) {
		log.debug("merging User instance");
		try {
			User result = (User) getHibernateTemplate().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(User instance) {
		log.debug("attaching dirty User instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(User instance) {
		log.debug("attaching clean User instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static UserDAO getFromApplicationContext(ApplicationContext ctx) {
		return (UserDAO) ctx.getBean("UserDAO");
	}
}